Direct neutron capture cross sections of 62Ni in the s-process energy range

Abstract

Direct neutron capture on 62Ni is calculated in the DWBA and the cross sections in the energy range relevant for s-process nucleosynthesis are given. It is confirmed that the thermal value of the capture cross section contains a subthreshold resonance contribution. Contrary to previous investigations it is found that the capture at higher energies is dominated by p-waves, thus leading to a considerably increased cross section at s-process energies and a modified energy dependence.

10 pages, 1 figure, corrected typos in Eq. 6 and subsequent paragraph

References in corpus (3)

• Astrophysical Reaction Rates From Statistical Model Calculations
• Reaction rates for Neutron Capture Reactions to C-, N- and O-isotopes to the neutron rich side of stability
• Nucleosynthesis in massive stars revisited

Cited by in corpus (8)

• The s Process: Nuclear Physics, Stellar Models, Observations
• s Process in low-mass Asymptotic Giant Branch Stars
• Neutron Reactions in Astrophysics
• The Path to Improved Reaction Rates for Astrophysics
• The stellar (n,gamma) cross section of 62Ni
• Cross section predictions for hydrostatic and explosive burning
• Evolution and Nucleosynthesis of Massive Stars and Related Nuclear Uncertainties
• Microscopic folding model analysis of the radiative $(n,\gamma )$ reactions near the $Z=28$ shell-closure and the weak s-process